I'm considering buying an iPad for use in college, but I wonder how well one of those would perform in real world use as opposed to spending my money on an upgraded laptop instead. I'm a little concerned about how the onscreen keyboard is for typing shorter texts, and how well one would perform writing longer texts using a BT-keyboard. But my main concern is if there are any good styluses available and apps that would allow me to use my ipad as a replacement for notebooks when it comes to mathmatics and physics? I'm not concerned with handwriting recognition or drawing pictures, but merely using it instead of paper in these cases. Anyone know any good capacative styluses and apps that would make the ipad function like that?